Remove (Open)Watcom support.

This compiler is not being developed since several years and almost certainly
can't be used to build the current wxWidgets sources anyhow, so remove all
support for it, including a lot of extremely ugly workarounds for its bugs
with template functions.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76546 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/wxcrtvararg.h

@@ -92,10 +92,6 @@
     #endif
 #endif /* __MINGW32__ */
 
-#if defined(__WATCOMC__)
-    #define HAVE_VSWPRINTF 1
-#endif
-
 #if wxUSE_PRINTF_POS_PARAMS
     /*
         The systems where vsnprintf() supports positional parameters should
@@ -145,12 +141,9 @@
             #define wxCRT_VsnprintfW    _vsnwprintf
         #elif defined(HAVE_VSWPRINTF)
             #define wxCRT_VsnprintfW     vswprintf
-        #elif defined(__WATCOMC__)
-            #define wxCRT_VsnprintfW    _vsnwprintf
         #endif
 
-        #if defined(HAVE_VSNPRINTF) \
-            || defined(__WATCOMC__)
+        #if defined(HAVE_VSNPRINTF)
             #ifdef HAVE_BROKEN_VSNPRINTF_DECL
                 #define wxCRT_VsnprintfA    wx_fixed_vsnprintf
             #else
@@ -269,14 +262,6 @@
 // user-friendly wrappers to CRT functions
 // ----------------------------------------------------------------------------
 
-#ifdef __WATCOMC__
-    // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
-    #define wxPrintf    wxPrintf_Impl
-    #define wxFprintf   wxFprintf_Impl
-    #define wxSprintf   wxSprintf_Impl
-    #define wxSnprintf  wxSnprintf_Impl
-#endif
-
     // FIXME-UTF8: remove this
 #if wxUSE_UNICODE
     #define wxCRT_PrintfNative wxCRT_PrintfW
@@ -393,27 +378,6 @@ wxVsnprintf(wchar_t *str, size_t size, const wxString& format, va_list argptr);
 
 #endif // wxUSE_UNICODE
 
-#ifdef __WATCOMC__
-    // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
-    //
-    // fortunately, OpenWatcom implements __VA_ARGS__, so we can provide macros
-    // that cast the format argument to wxString:
-    #undef wxPrintf
-    #undef wxFprintf
-    #undef wxSprintf
-    #undef wxSnprintf
-
-    #define wxPrintf(fmt, ...) \
-            wxPrintf_Impl(wxFormatString(fmt), __VA_ARGS__)
-    #define wxFprintf(f, fmt, ...) \
-            wxFprintf_Impl(f, wxFormatString(fmt), __VA_ARGS__)
-    #define wxSprintf(s, fmt, ...) \
-            wxSprintf_Impl(s, wxFormatString(fmt), __VA_ARGS__)
-    #define wxSnprintf(s, n, fmt, ...) \
-            wxSnprintf_Impl(s, n, wxFormatString(fmt), __VA_ARGS__)
-#endif // __WATCOMC__
-
-
 // We can't use wxArgNormalizer<T> for variadic arguments to wxScanf() etc.
 // because they are writable, so instead of providing friendly template
 // vararg-like functions, we just provide both char* and wchar_t* variants